JP6415138B2 - Damping device for tension material - Google Patents

Damping device for tension material Download PDF

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JP6415138B2
JP6415138B2 JP2014136229A JP2014136229A JP6415138B2 JP 6415138 B2 JP6415138 B2 JP 6415138B2 JP 2014136229 A JP2014136229 A JP 2014136229A JP 2014136229 A JP2014136229 A JP 2014136229A JP 6415138 B2 JP6415138 B2 JP 6415138B2
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connection
tension
rod
pipe
damping
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JP2016014422A (en
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靖 向高
靖 向高
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日本タイロッド工業株式会社
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Description

  The present invention relates to a tension material damping device that is installed on a tension material to which tension is introduced, such as a tie rod, and suppresses vibration of the tension material.
  2. Description of the Related Art Conventionally, as a vibration control device that is installed in a building structure or a civil engineering structure and suppresses vibration caused by an earthquake or the like, a device having a rotary inertia mass damper has been proposed. As this type of vibration control device, an outer cylinder and an inner cylinder are arranged in a telescopic shape, a piston that moves in the axial direction with a rod projecting toward the inner cylinder inside the outer cylinder, and a coupling to this piston And a cylindrical rotating body that rotates coaxially inside the inner cylinder, a female screw formed along the central axis of the rotating body, and the rod. A ball screw is formed by placing a ball between the male screw (see, for example, Patent Document 1). The inner cylinder has an enlarged end on the side protruding from the outer cylinder, and a disk-like flywheel connected to the tip of the rotating body is accommodated inside the enlarged diameter portion.
  Two of the vibration damping devices are arranged in a C shape in a frame surrounded by beams and columns of the structure. In the two vibration damping devices having the above-mentioned C shape, the base end of the outer cylinder is pivotally connected to the center of the upper beam, while the protruding end of the inner cylinder is the joint between the lower beam and the column. To be pivotally connected to each other. When the structure undergoes an interlayer displacement due to an earthquake, the outer cylinder and the inner cylinder of the vibration damping device are relatively displaced in the axial direction, the piston expands and contracts the coil spring, and the rotating body relatively displaces in the axial direction with respect to the rod. . When the rotating body is displaced relative to the rod in the axial direction, the rotating body is rotated around the central axis by the ball screw, and the flywheel connected to the rotating body is rotated around the central axis. Energy absorption is performed by the elasticity of the coil spring and the rotational inertia force of the flywheel, and the vibration of the structure is attenuated.
  In the above vibration damping device, displacement between the base end of the outer cylinder connected to the beam or the column and the projecting end of the inner cylinder occurs alternately in the compression direction and the tension direction with the interlayer displacement of the structure. When the outer cylinder and the inner cylinder are displaced in the compression direction, the coil spring is compressed and the flywheel rotates in a predetermined direction around the axis. On the other hand, when the outer cylinder and the inner cylinder are displaced in the tension direction, the coil spring is expanded and the flywheel is rotated. The wheel rotates in the direction opposite to the predetermined direction around the axis. That is, this vibration damping device absorbs energy based on the elasticity of the coil spring and energy based on the rotational inertia force of the flywheel, regardless of whether the outer cylinder and the inner cylinder are displaced relative to each other in the compression direction or the tension direction. be able to.
JP 2011-012739 A
  By the way, in a building structure or a civil engineering structure, for example, a tie rod or a tie rod is used for connecting a sheet pile arranged in parallel to each other in order to form a temporary levee, or for hanging a fence protruding horizontally from a wall surface of a building. A tension material such as a wire is used. The tension material is applied to a portion that receives only a tensile force from the structure, and is formed of a member that has a relatively large slenderness ratio and does not transmit a compression force.
  Recently, due to the heightened awareness of disaster prevention, improvement of seismic performance of various structures has been demanded, and it is desirable to provide a damping function for tension materials applied to structures. Therefore, it is conceivable to install a conventional vibration damping device such as that disclosed in Patent Document 1 between the structure and the tension member.
  However, since the tension material is formed of a member that does not transmit a compressive force, only the displacement in the tensile direction between the structure and the tension material is transmitted to the vibration damping device, and the displacement in the compression direction is transmitted to the vibration damping device. Not transmitted. Therefore, there is a problem that the energy absorption effect of the vibration damping device cannot be sufficiently exhibited.
  The conventional vibration damping device is relatively large because it is arranged in a telescopic shape with the outer cylinder, the inner cylinder, and a flywheel at the protruding end of the inner cylinder. Therefore, the installation position may be limited depending on the shape of the structure and the positional relationship with other members. In particular, since the tension material has a relatively small thickness and width, it may be installed at a location close to other members, and thus a relatively large vibration damping device is likely to be difficult to arrange. Moreover, there exists a possibility of impairing the aesthetics of a structure by arrange | positioning a comparatively large damping device.
  In addition, the conventional vibration damping device is formed of an outer cylinder, an inner cylinder, a piston, a rod, a coil spring, a rotating body and a flywheel, and has a large number of parts and transmits both tensile force and compressive force. Since a high strength is required, the mass is relatively large. Therefore, when the damping device is connected to the tension member, the tension member may be bent due to the mass of the damping device. Further, since the tension material does not transmit the compressive force, if the relative displacement in the compression direction occurs at the connection between the damping device and the tension material due to the vibration of the structure, the tensile force of the tension material is temporarily reduced to zero. As a result, the tension material is significantly bent and the posture of the vibration damping device changes, and the vibration damping device itself may increase vibration.
  Accordingly, the object of the present invention is to provide a vibration damping device for a tension material that can be reduced in size and weight suitable for the tension material and can effectively suppress the vibration of the tension material and the member on which the tension material is stretched. There is to do.
In order to solve the above-described problems, a vibration damping device for a tension material according to the present invention is provided between a tension material and a tension material spanned between a plurality of members or at a connection portion between the tension material and the member. A tension material damping device for suppressing vibrations of the tension material and the member,
A first connection portion and a second connection portion, one of which is connected to the tension member and the other of which is connected to the tension member or the member and capable of relative linear movement in the axial direction;
A rotating body arranged at a position overlapping the first connection portion and the second connection portion;
A motion conversion mechanism for converting a relative linear motion of the first connection portion and the second connection portion into a circular motion of the rotating body;
And a holding portion that holds the first connection portion and the second connection portion so that relative linear motion is possible in the approaching direction and the separation direction in a state where tension is introduced into the tension material. It is said.
  According to the above configuration, the tension material damping device of the present invention is interposed between the tension material and the tension material spanned between the plurality of members, or interposed between the tension material and the member. The When interposed between the tension members, the first connection part is connected to one of the tension members, and the second connection part is connected to the other tension member. When interposed in the connection part of a tension material and a member, the 1st connection part is connected to the end of the tension material, and the 2nd connection part is connected to the member to which the tension material is connected. When a seismic load, wind load, live load, or the like acts on a member and relative displacement occurs between the members, the tension of the tension member increases or decreases, thereby causing the first connection portion and the second connection portion to move in the axial direction. Performs a relative linear motion. The relative linear motion of the first connection portion and the second connection portion is converted into a circular motion of the rotating body by the motion conversion mechanism. Due to the mass effect of the rotational inertia of the rotating body that performs circular motion, the vibration energy due to the relative displacement between the members is attenuated, thereby reducing the vibration of the member and the tension member.
  Here, the first connecting portion and the second connecting portion are capable of relative linear movement in the approaching direction and the separating direction in a state where a predetermined tension is introduced into the tension material by the holding portion. Since it is held, the chance that the tensile force of the tension material becomes zero during the relative linear motion can be reduced. Therefore, the relative linear motion of the first connection portion and the second connection portion can be effectively converted into the rotational motion of the rotating body, and the vibration of the member and the tension member is effectively reduced by the mass effect of the rotational inertia of the rotating body. it can. Moreover, since the chance that the tensile force of the tension member becomes zero can be reduced, it is possible to prevent the inconvenience that the tension member temporarily becomes zero, the posture of the vibration damping device changes, and the vibration damping device itself vibrates. Here, the holding portion is configured so that the fluctuation range of the tension generated in the tensile material corresponding to the vibration generated in response to the earthquake, wind, or live load assumed in advance is within a positive region. It is preferable to hold the second connection portion.
  Further, in the vibration damping device for tension material, since the rotating body is arranged at a position overlapping the first connection portion and the second connection portion, it overlaps with one connection portion or the other connection portion. Rather than disposing the rotating body at a position where the first connecting portion, the second connecting portion, and the rotating body are combined, the overall size can be reduced. Therefore, the vibration damping device for tension material can be reduced in size. Therefore, the vibration damping device for tension material is not easily limited by the installation position due to the positional relationship with other members, and can be applied to the structure with a relatively high degree of freedom. Moreover, since this damping material damping device can be made relatively small, it is possible to prevent inconveniences that impair the aesthetic appearance of the structure. Here, the position overlapping the first connection portion and the second connection portion where the rotator is disposed is a position where the rotator individually overlaps the first connection portion and the second connection portion when viewed in the direction perpendicular to the axis. Or the position where a rotary body further overlaps the part which a 1st connection part and a 2nd connection part overlap.
  In addition, since the tension material damping device substantially transmits only the tensile force from the tension material and does not receive the compressive force, the tension material damping device can be configured with a relatively low strength component. Therefore, since the damping device for tension material can reduce the mass, it is possible to prevent inconvenience that excessive tension is caused in the connected tension material.
  In the present invention, the tension material refers to a member that is installed at a location that receives substantially only the tensile force and transmits only the tensile force, and includes, for example, a tie rod, a wire, a piano wire, and a chain.
  In one embodiment of the vibration damping device for tension material, the holding portion includes an elastic body coupled between the first connection portion and the second connection portion.
  According to the embodiment, the elastic body of the holding portion expands as tension is introduced into the tension member, and the first connecting portion and the second connecting portion are moved relative to each other in the approach direction and the separation direction. Can be held as possible. Here, the elastic body of the holding part is set to a spring constant so that the fluctuation range of the tension generated in the tension material corresponding to the vibration generated in response to the earthquake, wind or live load assumed in advance falls within the positive area. It is preferable to do this. That is, it is preferable to set the tension material to have a positive tension when the first connection portion and the second connection portion are closest to each other. Further, when the elastic body has linear elasticity, when the tension is introduced, the spring constant of the holding portion is set so that the first connection portion and the second connection portion make a relative displacement substantially in the center of the relative displacement range. It is preferable to set. Further, by providing an elastic body in the holding portion, the vibration energy of the member that causes relative linear displacement between the first connection portion and the second connection portion can be attenuated by the expansion and contraction of the elastic body. The vibration of the member and the tension material can be reduced. Here, rubber or a spring can be used as the elastic body of the holding portion.
  In one embodiment of the vibration damping device for a tension member, the rotating body is formed in a sleeve shape surrounding the distal end portion of the first connecting portion and the distal end portion of the second connecting portion.
  According to the above embodiment, since the rotating body is formed in a sleeve shape surrounding the distal end portion of the first connecting portion and the distal end portion of the second connecting portion, it is possible to effectively reduce the size of the tension material damping device. It can be carried out.
In one embodiment of the damping device for tension material, the first connection portion and the second connection portion are formed such that relative linear motion is possible in a state where the other tip portion is fitted inside the tip portion.
The motion conversion mechanism is fixed to the fitting portion of the first connection portion and the second connection portion, the through spiral groove formed in the opposite direction winding, and the diametrically extending inside the rotating body. And a columnar member disposed through the through spiral groove of the first connection portion and the through spiral groove of the second connection portion.
  According to the above embodiment, when the first connecting portion and the second connecting portion perform relative linear motion, the fitting portion of the first connecting portion and the fitting portion of the second connecting portion are axially moved. Perform relative linear motion. Accordingly, the crossing portion in the radial direction of the through spiral groove formed in the fitting portion of the first connection portion and the through spiral groove formed in the fitting portion of the second connection portion is the penetration spiral. Since the grooves are formed in opposite directions, the grooves move in the circumferential direction. As the intersecting portions of these through spiral grooves move in the circumferential direction, the columnar member disposed through the through spiral groove of the first connection portion and the through spiral groove of the second connection portion is a first member. It is driven in the circumferential direction around the central axis of the connection part and the second connection part. Therefore, the rotating body to which the columnar member is fixed can be rotationally driven around the central axes of the first connection portion and the second connection portion. Here, it is preferable that the fitting portion between the first connection portion and the second connection portion is formed in a cylindrical shape arranged coaxially.
  In the tension material damping device of one embodiment, the motion conversion mechanism is formed on the outer peripheral surface near the tip of the first connecting portion and the outer peripheral surface near the tip of the second connecting portion, respectively, and is wound in the opposite direction. A male screw that is spirally cut, and a female screw that is formed at each end of the inner side surface of the rotating body and that engages with the male screw of the first connecting portion and the male screw of the second connecting portion. .
  According to the above embodiment, when the first connection portion and the second connection portion perform relative linear motion, the male screw of the first connection portion and the male screw of the second connection portion that are spirally cut in the opposite directions are Perform relative linear motion in the axial direction. Accordingly, the rotating body in which the female screw at both ends is engaged with the male screw of the first connecting portion and the male screw of the second connecting portion is rotationally driven around the central axis. Thus, the relative linear motion of the first connection portion and the second connection portion can be converted into the rotational motion of the rotating body by the motion conversion mechanism having a relatively small number of parts. Here, a ball screw may be formed by arranging a plurality of balls between the male screw of the first connecting portion and the male screw of the second connecting portion and the female screw of the rotating body.
In the vibration damping device for tension material according to an embodiment, the rotating body includes a disk-shaped member disposed on a side of the distal end portion of the first connection portion and the distal end portion of the second connection portion, and the disk-shaped member. A rotating shaft connected to the center of the
The motion conversion mechanism includes a rack formed to face a tip portion of the first connection portion and a tip portion of the second connection portion, a rack of the first connection portion, and a rack of the second connection portion. And a pinion connected to the rotating shaft of the rotating body.
  According to the embodiment, when the first connection portion and the second connection portion perform relative linear motion, the rack formed near the tip of the first connection portion and the tip near the tip of the second connection portion are formed. The rack thus made performs a relative linear motion in the axial direction. Along with this, a pinion that meshes with the rack of the first connection part and the rack of the second connection part is rotationally driven, and the disk-shaped member of the rotating body connected to the pinion via a rotational shaft is rotationally driven. Is done. Thus, the relative linear motion of the first connection portion and the second connection portion can be converted into the rotational motion of the rotating body by the motion conversion mechanism having a relatively small number of parts.
In one embodiment, the tension material damping device is installed to connect the two tension materials,
Female screws are respectively formed on the proximal end portion of the first connecting portion and the proximal end portion of the second connecting portion,
Male screws are formed at the ends of the two tension members,
The first connecting portion and the second connecting portion are rotated about the axis in a state where the male screw at the tip of the two tension members is screwed into the female screw of the first connecting portion and the female screw of the second connecting portion, respectively. By doing so, it is configured to adjust the threading length of the first and second connecting portions and the two tension members to adjust the tension introduced into the two tension members.
  According to the said embodiment, this damping material damping device is installed so that the two tension materials connected to the predetermined member may be connected. The male threads at the distal ends of the two tension members are respectively screwed into the female threads formed at the proximal end portion of the first connection portion and the proximal end portion of the second connection portion of the tension material damping device. In this state, by rotating the first connection portion and the second connection portion around the axis, the screwing length between the first connection portion and the second connection portion and the two tension members is adjusted, and these two tension members are adjusted. Adjust the tension to be introduced. In this way, the tension of the tension member spanned between the plurality of members can be adjusted so that the tension member damping device can exert an appropriate damping function. In addition, this tension material damping device functions as a turnbuckle that connects two tension materials while adjusting the tension of the two tension materials. By replacing the existing turnbuckle, the existing tension material or member is damped. Functions can be added.
It is a front view which shows the vibration suppression turnbuckle of 1st Embodiment of this invention. FIG. 2 is a cross-sectional view taken along line AA of the vibration damping turnbuckle of FIG. 1. FIG. 3 is a cross-sectional view of the vibration damping turnbuckle of FIG. 1 taken along line BB. It is CC sectional view taken on the line of the damping turnbuckle of FIG. It is an exploded view of the vibration suppression turnbuckle of 1st Embodiment. It is a figure which shows the example which applied the vibration suppression turnbuckle of 1st Embodiment to the wall body. It is a figure which shows the example which applied the vibration suppression turnbuckle of 1st Embodiment to the bag. It is a figure which shows the example which applied the vibration suppression turnbuckle of 1st Embodiment to the stringed beam. It is a front view which shows the vibration suppression turnbuckle of 2nd Embodiment of this invention. It is a front longitudinal cross-sectional view of the vibration suppression turnbuckle of 2nd Embodiment. It is an exploded view of the vibration suppression turnbuckle of 2nd Embodiment. It is a front view which shows the vibration suppression turnbuckle of 3rd Embodiment of this invention. It is a front longitudinal cross-sectional view of the vibration suppression turnbuckle of 3rd Embodiment. It is the DD sectional view taken on the line of the damping turnbuckle of FIG.
  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
  FIG. 1 is a front view showing a vibration damping turnbuckle as a first embodiment of a tension material damping device of the present invention, and FIG. 2 is a longitudinal sectional view taken along line AA of FIG. 3 is a transverse sectional view taken along the line BB in FIG. 1, and FIG. 4 is a longitudinal sectional view taken along the line CC in FIG. FIG. 5 is an exploded view of the vibration damping turnbuckle of the first embodiment. The vibration-damping turnbuckle 10 is connected to the first rod 1 and the second rod 2 as tension members constituting the tie rod, introduces a predetermined tension to the first rod 1 and the second rod 2, and is generated in the tie rod. The vibration and the vibration of the member on which the tie rod is bridged are suppressed.
  The vibration control turnbuckle 10 has a first connecting pipe 3 as a first connecting portion whose proximal end is connected to the first rod 1, a proximal end connected to the second rod 2, and a distal end portion having a first end portion. A second connecting tube 4 as a second connecting portion that fits in a tip portion of the connecting tube 3, and a first tubular rubber 7 and a second tubular as a holding portion for connecting the first connecting tube 3 and the second connecting tube 4. It is formed by a flywheel 5 as a rotating body disposed so as to surround the rubber 8 and the distal end portion of the first connecting tube 3 and the distal end portion of the second connecting tube 4. 1, 2 and 4 show a state in which the first connecting pipe 3 and the second connecting pipe 4 are at a position where the maximum value of the relative displacement is achieved.
  The first connecting pipe 3 is formed of a substantially cylindrical tubular body, and as shown in an exploded view of FIG. 5, a base end 3 a connected to the first rod 1 and a tip 3 b surrounded by the flywheel 5. Have The proximal end portion 3a and the distal end portion 3b are formed coaxially, and the distal end portion 3b is formed with a smaller diameter than the proximal end portion 3a. A step portion is formed between the base end portion 3a and the tip end portion 3b. A through hole concentric with the central axis is formed inside the first connecting pipe 3, and this through hole has a small-diameter through hole 33 located at the base end side portion of the base end portion 3a and the base end portion 3a. The large-diameter through hole 34 is located from the distal end side portion to the distal end of the distal end portion 3b. The small diameter through hole 33 is provided with a female screw into which a male screw provided at the distal end portion 1 a of the first rod 1 is screwed. Two penetrating spiral grooves 31 and 32 formed with a phase difference of 180 ° at the same axial position are provided at the distal end portion 3b of the first connecting pipe 3. The two through spiral grooves 31 and 32 are formed in a range of 90 ° when viewed in the axial direction. A columnar member 51 of the flywheel 5 is formed in the two through spiral grooves 31 and 32 so as to penetrate in the radial direction of the first connecting pipe 3.
  The second connecting pipe 4 is formed of a substantially cylindrical tubular body. As shown in the exploded view of FIG. 5, the base end 4 a connected to the second rod 2 and the tip 4 b surrounded by the flywheel 5. Have The proximal end portion 4a and the distal end portion 4b of the second connection pipe 4 form a cylindrical surface having a single outer diameter. A through hole concentric with the central axis is formed inside the second connection pipe 4. The through holes include a small diameter through hole 43 located on the proximal end side of the base end portion 4a, a medium diameter through hole 44 located on the distal end side of the base end portion 3a, and a large diameter through hole 45 located on the distal end portion 4b. It consists of A step portion is formed between the medium diameter through hole 44 and the large diameter through hole 45 of the through hole. The small diameter through hole 43 is provided with a female screw into which a male screw provided at the distal end portion 2 a of the second rod 2 is screwed. Two penetrating spiral grooves 41 and 42 formed with a phase difference of 180 ° at the same axial position are provided at the distal end portion 4 b of the second connection pipe 4. The two through spiral grooves 41 and 42 are formed in a range of 90 ° when viewed in the axial direction. A columnar member 51 of the flywheel 5 is formed in the two through spiral grooves 41 and 42 so as to penetrate in the radial direction of the second connecting pipe 4.
  The through spiral grooves 31 and 32 of the first connection pipe 3 and the through spiral grooves 41 and 42 of the second connection pipe 4 are formed in opposite directions. The female screw of the small diameter through hole 33 of the first connection pipe 3 and the female screw of the small diameter through hole 43 of the second connection pipe 4 are formed in opposite directions.
  The first tubular rubber 7 is composed of a rubber tubular body having substantially the same outer diameter and thickness as the distal end portion 3 b of the first connecting pipe 3. The first tubular rubber 7 is disposed in the large-diameter through hole 45 of the second connection pipe 4, and one end is fixed to the end surface of the distal end portion 3 b of the first connection pipe 3, while the other end is the second connection pipe. 4 is fixed to the step between the large diameter through hole 45 and the medium diameter through hole 44. The second tubular rubber 8 is composed of a rubber cylindrical body having substantially the same outer diameter and thickness as the distal end portion 4 b of the second connecting pipe 4. The second tubular rubber 8 is disposed on the outer peripheral side of the distal end portion 3 b of the first connecting pipe 3, and one end is fixed to the distal end surface of the second connecting pipe 4, while the other end is the distal end of the first connecting pipe 3. It is fixed to the step part between the part 3b and the base end part 3a.
  When the first tubular rubber 7 and the second tubular rubber 8 introduce a predetermined tension to the first rod 1 and the second rod 2 by the damping turnbuckle 10, the first connecting pipe 3 and the second connecting pipe 8 The spring constant is set so that 4 is located at the center of the relative displacement range assumed in advance for the first connecting pipe 3 and the second connecting pipe 4. Furthermore, the first tubular rubber 7 and the second tubular rubber 8 have a linear spring constant in the relative displacement range assumed in advance of the first connecting pipe 3 and the second connecting pipe 4, and the first rod 1 and The spring constant is set so that the fluctuation range of the tension of the second rod 2 is within a positive region. Here, the presumed relative displacement range of the first connecting pipe 3 and the second connecting pipe 4 means that a member connected by a tie rod to which the damping turnbuckle 10 is applied is assumed to be an earthquake, wind, This is a relative displacement range generated in the first connecting pipe 3 and the second connecting pipe 4 when vibrated under a live load. Note that the first annular rubber 7 and the second tubular rubber 8 as the holding portion may be configured by ring springs or the like other than rubber, and a predetermined tension to be introduced into the first rod 1 and the second rod 2 is introduced. As long as the first connecting pipe 3 and the second connecting pipe 4 can be held at the center of the relative displacement range at this time, the material, shape, and arrangement number are not particularly limited. Further, when using a holding portion having a non-linear spring constant, the first connecting pipe 3 and the second connecting pipe 4 do not necessarily have to be held at the center of the relative displacement range. In short, the holding portion is configured so that the first rod 1 and the second rod 2 have a tension variation range within a positive region when vibrated in response to a presumed earthquake, wind, or live load. What is necessary is just to hold | maintain the connection pipe 3 and the 2nd connection pipe 4 so that a relative linear motion is possible in an approach direction and a separation direction.
  The flywheel 5 includes a sleeve-like cylindrical member 53 arranged so as to surround the outer peripheral side of the distal end portion 3a of the first connection pipe 3 and the distal end portion 4a of the second connection pipe 4 at a stationary position, and the diameter of the cylindrical member 53 A columnar member 51 extending in the direction and a fixing pin 52 for fixing the columnar member 51 to the inside of the cylindrical member 53 are provided. The columnar member 51 is disposed substantially in the center of the cylindrical member 53 in the axial direction, and a fixing pin 52 fastened with a hexagon nut from the outer peripheral side of the cylindrical member 53 is screwed to the end surface of the columnar member 51. It is fixed to the cylindrical member 53.
  The flywheel 5 includes a through spiral groove 31 and 32 of the first connection pipe 3 and a through spiral groove 41 of the second connection pipe 4 at a fitting portion between the first connection pipe 3 and the second connection pipe 4. The columnar member 51 is attached to 42 through the columnar member 51. The first connecting pipe 3 and the second connecting pipe 4 include the penetrating spiral grooves 31 and 32 of the first connecting pipe 3, the penetrating spiral grooves 41 and 42 of the second connecting pipe 4, and the columnar member 51 of the flywheel 5. The motion conversion mechanism 6 is configured to convert the relative linear motion to the rotational motion of the flywheel 5. Further, the columnar member 51 of the flywheel 5 is configured so that the end-side ends of the through spiral grooves 31 and 32 and the through spiral grooves 41 and 42 when the first connecting pipe 3 and the second connecting pipe 4 are at the maximum relative displacement. By engaging with the part, the first connecting pipe 3 and the second connecting pipe 4 are prevented from being detached.
  Using the vibration-damping turnbuckle 10 configured as described above, a tie rod is configured as follows. First, a clevis provided at one end of the first rod 1 is connected to one member that bridges the tie rod. Further, a clevis provided at one end of the second rod 2 is connected to the other member that bridges the tie rod. Next, the male screw of the small diameter through hole 33 of the first connection pipe 3 of the damping turnbuckle 10 is screwed into the male screw of the tip end portion 1 a at the other end of the first rod 1, and the other of the second rod 2. The female screw of the small-diameter through hole 43 of the second connecting pipe 4 of the damping turnbuckle 10 is screwed into the male screw of the tip 2a at the end. The male screw of the first rod 1 and the male screw of the second rod 2 correspond to the female screw of the first connecting tube 3 and the female screw of the second connecting tube 4 formed in opposite directions. It is formed in a reverse direction. After the first connecting pipe 3 is screwed to the first rod 1 and the second connecting pipe 4 is screwed to the second rod 2, the entire damping turnbuckle 10 is rotated about the axis. As a result, the first rod 1 and the second rod 2 are pulled toward each other to introduce tension to the first rod 1 and the second rod 2. In the damping turnbuckle 10, in the initial state where no tension is introduced, the first tubular rubber 7 and the second tubular rubber 8 are contracted, and the first connecting pipe 3 and the second connecting pipe 4 approach each other and have the smallest relative relation. It is in a position that forms a linear displacement. When the vibration control turnbuckle 10 is rotated to introduce tension to the first rod 1 and the second rod 2, the first tubular rubber 7 and the second tubular rubber 8 are extended to increase the first tension as the tension increases. The connecting pipe 3 and the second connecting pipe 4 move away from each other, and the relative linear displacement between the first connecting pipe 3 and the second connecting pipe 4 increases. When the tension introduced into the first rod 1 and the second rod 2 reaches a predetermined tension for connecting the members and the rotation of the damping turnbuckle 10 is stopped, the first connection pipe 3 and the second connection pipe 4 can be relatively linearly moved in the approaching direction and the separating direction, and is held substantially at the center of the relative displacement range. At this time, the penetrating spiral grooves 31 and 32 of the first connecting pipe 3 and the penetrating spiral grooves 41 and 42 of the second connecting pipe 4 intersect each other at the approximate center in the extending direction, and approximately the center in the extending direction. It is preferable that the columnar member 51 of the flywheel 5 is disposed on the side. Thus, the vibration control turnbuckle 10 connects the first rod 1 and the second rod 2, introduces a predetermined tension to the first rod 1 and the second rod 2, and connects the members with the tie rods. .
  The vibration-damping turnbuckle 10 of the present embodiment suppresses the vibration of the tie rod and the vibration of the member on which the tie rod is bridged as follows. First, when a seismic load, a wind load, or a live load acts to cause a relative displacement between a plurality of members, a relative displacement occurs between the first rod 1 and the second rod 2 connected to these members, In response to this, the first connecting pipe 3 and the second connecting pipe 4 perform relative linear motion in the axial direction. When the first connecting tube 3 and the second connecting tube 4 perform relative linear motion, the distal end portion of the first connecting tube 3 and the distal end portion of the second connecting tube 4 that are fitted to each other perform relative linear motion in the axial direction. . Accordingly, the through spiral grooves 31 and 32 of the first connection pipe 3 and the through spiral grooves 41 and 42 of the second connection pipe 4 are formed in opposite directions to each other. The crossing part of the radial direction view of 32 and the through spiral grooves 41 and 42 moves in the circumferential direction. As the intersecting portions of the through spiral grooves 31 and 32 and the through spiral grooves 41 and 42 move in the circumferential direction, the through spiral grooves 31 and 32 of the first connection pipe 3 and the through spirals of the second connection pipe 4 are moved. The columnar member 51 of the flywheel 5 penetrating into the grooves 41 and 42 is driven in the circumferential direction around the central axes of the first connecting pipe 2 and the second connecting pipe 4. As a result, the flywheel 5 rotates about the concentric axes of the first connecting pipe 2 and the second connecting pipe 4. Here, when the first connection pipe 3 and the second connection pipe 4 are alternately displaced in the approaching direction and the separation direction, the flywheel 5 is alternately rotated in one direction around the central axis and in the other direction. . Due to the mass effect of the rotational inertia of the flywheel 5, the vibration energy due to the relative displacement of the first rod 1 and the second rod 2 and the vibration energy due to the relative displacement of the members are attenuated. As a result, vibrations of the first rod 1 and the second rod 2 and the members are reduced. Moreover, when the 1st connection pipe 3 and the 2nd connection pipe 4 displace alternately to an approach direction and a separation direction, the 1st annular rubber 7 and the 2nd tubular rubber 8 repeat contraction and expansion. Due to the damping action associated with the expansion and contraction of the first annular rubber 7 and the second tubular rubber 8, vibrations of the first rod 1 and the second rod 2 and the members are reduced. Further, the first annular rubber 7 and the second tubular rubber 8 absorb an impact caused by vibration.
  According to the vibration damping turnbuckle 10 of the present embodiment, when a predetermined tension is introduced to the first rod 1 and the second rod 2, the first connecting pipe 3 and the first tubular rubber 7 and the second tubular rubber 8 are used. The 2nd connection pipe 4 can be hold | maintained so that a relative linear motion is possible in an approach direction and a separation direction. Thereby, even if the 1st connecting pipe 3 and the 2nd connecting pipe 4 carry out a relative linear motion in the approach direction, it can prevent that the tensile force of the 1st rod 1 and the 2nd rod 2 becomes zero. Therefore, the relative linear motion of the first connecting tube 3 and the second connecting tube 4 can be effectively converted into the rotational motion of the flywheel 5, and the first rod 1 and the second rod 2 are caused by the mass effect of the rotational inertia of the flywheel 5. The vibration of the rod 2 and the member can be effectively reduced. Moreover, since the chance that the tensile force of the 1st rod 1 and the 2nd rod 2 becomes zero can be decreased, the 1st rod 1 and the 2nd rod 2 become temporarily zero, and the attitude | position of the vibration suppression turnbuckle 10 changes. In addition, it is possible to prevent inconvenience that the vibration damping turnbuckle 10 itself vibrates.
  Further, the vibration-damping turnbuckle 10 of the present embodiment is disposed at a position where the flywheel 5 surrounds the tip portion of the first connection pipe 3 and the tip portion of the second connection pipe 4 that overlap each other. Thereby, the whole dimension which match | combined the 1st connecting pipe 3, the 2nd connecting pipe 4, and the flywheel 5 can be made comparatively small. Therefore, the vibration-damping turnbuckle 10 is difficult to be restricted by the installation position due to the positional relationship with other members, and can be applied to the structure with a relatively high degree of freedom. Further, since the vibration damping turnbuckle 10 can be made relatively small, it is possible to prevent inconvenience that impairs the aesthetic appearance of the structure.
  In addition, the vibration-damping turnbuckle 10 of the present embodiment can be configured with parts having relatively low strength because substantially only the tensile force is transmitted from the first rod 1 and the second rod 2 and no compression force is received. Therefore, since this damping | damping turnbuckle 10 can make mass small, it can prevent the problem which produces the excessive bending in the 1st rod 1 and the 2nd rod 2 to be connected.
  Further, the vibration-damping turnbuckle 10 of the present embodiment is formed by surrounding the front end portion of the first connection pipe 3 and the front end portion of the second connection pipe 4 that overlap each other by the flywheel 5. A casing that covers the distal end portion of the tube 3 and the distal end portion of the second connection tube 4 is not necessary. Therefore, it is possible to effectively reduce the number of parts and reduce the weight.
  FIG. 6 is a diagram illustrating an example in which the vibration damping turnbuckle 10 of the present embodiment is applied to a wall of a structure. As shown in FIG. 6, in the wall body, a brace formed by a tie rod 12 using a damping turnbuckle 10 is arranged in a rectangular frame body 11 as a member. Gusset plates 11a, 11a, 11a, 11a are respectively provided at the four corners of the frame 11, and tie rods 12 are bridged between the gusset plates 11a, 11a facing diagonally. The tie rod 12 includes two clevises 13 pin-connected to the gusset plate 11a, a first rod 1 having one end connected to one clevis 13, a second rod 2 having one end connected to the other clevis 13, The vibration control turnbuckle 10 is formed to connect the other end of the first rod 1 and the other end of the second rod 2.
  When the frame 11 vibrates due to an earthquake or the like, the wall body is alternately displaced in the direction in which the two gusset plates 11a, 11a facing diagonally approach each other and in the direction in which they are separated from each other. Accordingly, the first connecting pipe 3 and the second connecting pipe 4 of the damping turnbuckle 10 are connected in the approach direction via the first rod 1 and the second rod 2 connected to the gusset plates 11a and 11a. Relative linear motion that repeats displacement alternately in the separation direction. The relative linear motion of the first connection pipe 3 and the second connection pipe 4 is caused by the through spiral grooves 31 and 32 of the first connection pipe 3, the through spiral grooves 41 and 42 of the second connection pipe 4, and the flywheel 5. The motion conversion mechanism 6 formed by the columnar member 51 is converted into the rotational motion of the flywheel 5. Due to the rotational inertia force accompanying the rotation of the flywheel 5, the vibration of the first rod 1 and the second rod 2 of the tie rod 12 and the vibration of the frame body 11 are reduced, and the vibration of the wall body is reduced. In this wall body, two tie rods 12 are arranged on the diagonal line of the frame body 11, and each tie rod 12 is provided with a vibration control turnbuckle 10. Therefore, these two vibration control turnbuckles 10 are positioned at 180 °. Can be operated with phase difference. Therefore, the vibration of the wall body can be effectively damped without deviation. In addition, since the wall body uses the tie rod 12 to which the small vibration damping turnbuckle 10 according to the present embodiment is applied for bracing, even if the wall thickness is relatively small and the bracing installation space is small, the vibration reducing effect is achieved. High vibration control function can be obtained. Here, the wall body may be one in which the frame body 11 is formed of pillars and beams of a structure, or the frame body 11 may be formed independently of the structure.
  FIG. 7 is a diagram illustrating an example in which the vibration-damping turnbuckle 10 of the present embodiment is applied to a bag as a member of a structure. As shown in FIG. 7, the flange 14 is installed on the wall 15 of the structure so as to protrude in the horizontal direction at a right angle to the surface of the wall 15. A tie rod 12 is bridged between a suspension plate 15 a provided on the surface of the wall 15 and a support plate 14 a provided at the tip of the flange 14. The wall surface of the wall 15, the flange 14, and the tie rod 12 form a substantially right triangle. The tie rod 12 has two clevises 13 pin-connected to the suspension plate 15a and the support plate 14a, the first rod 1 having one end connected to one clevis 13, and one end connected to the other clevis 13. The second rod 2 is formed by a vibration-damping turnbuckle 10 that connects the other end of the first rod 1 and the other end of the second rod 2.
  When the hook 14 vibrates in the vertical direction of FIG. 7 due to an earthquake or the like, the hook plate 15a and the support plate 14a are alternately displaced in a direction toward and away from each other. Accordingly, the first connecting pipe 3 and the second connecting pipe 4 of the damping turnbuckle 10 are connected in the approach direction and the separation direction via the first rod 1 and the second rod 2 connected to the plates 15a and 14a. Relative linear motion that repeats displacement alternately is performed. The relative linear motion of the first connection pipe 3 and the second connection pipe 4 is caused by the through spiral grooves 31 and 32 of the first connection pipe 3, the through spiral grooves 41 and 42 of the second connection pipe 4, and the flywheel 5. The motion conversion mechanism 6 formed by the columnar member 51 is converted into the rotational motion of the flywheel 5. The rotational inertia force accompanying the rotation of the flywheel 5 reduces the vibration of the first rod 1 and the second rod 2 of the tie rod 12 and the vibration of the rod 14. Since the collar 14 is supported by the tie rod 12 to which the small vibration damping turnbuckle 10 of the present embodiment is applied, vibration can be effectively suppressed while suppressing the influence on the beauty. Further, since the tie rod 12 that supports the flange 14 uses the light-weight damping turnbuckle 10 of the present embodiment, the bending of the first rod 1 and the second rod 2 can be reduced, and the vibration-damping turnbuckle can be reduced. The vibration of 10 itself can be prevented.
  FIG. 8 is a diagram illustrating an example in which the vibration damping turnbuckle 10 of the present embodiment is applied to a stringed beam as a structural member. As shown in FIG. 8, the stringed beam 16 is generally composed of a beam body 17 as an upper chord material and two tie rods 12 and 12 as a lower chord material. Connection plates 17a and 17a are provided at both lower ends of the beam body 17, and a bar-like bundle 18 extending downward is provided at the center of the beam body 17 at the lower side. A connecting plate 18a is provided at the tip of the plate. Two tie rods 12 and 12 are bridged between connection plates 17 a and 17 a at both ends of the beam body 17 and a connection plate 18 a at the tip of the bundle 18. The tie rod 12 includes two clevises 13 pin-connected to the connecting plate 17a or the connecting plate 18a, the first rod 1 having one end connected to one clevis 13 and the first clevis 13 having one end connected to the other clevis 13. The rod 2 is formed by a vibration damping turnbuckle 10 that connects the second rod 2, the other end of the first rod 1, and the other end of the second rod 2. Both ends of this string 16 are supported by pillars and girders, and are used, for example, in a large span frame.
  When the beam main body 17 vibrates in the vertical direction of FIG. 8 due to the seismic load, wind load, live load, etc., the stringed beam 16 moves in the vertical direction, and the connecting plate 17a and the connecting plate 18a are moved. The displacement is alternately repeated in a direction approaching and separating from each other. Accordingly, the first connection pipe 3 and the second connection pipe 4 of the damping turnbuckle 10 are moved in the approach direction and the separation direction via the first rod 1 and the second rod 2 connected to the plates 17a and 18a. Relative linear motion that repeats displacement alternately is performed. The relative linear motion of the first connection pipe 3 and the second connection pipe 4 is caused by the through spiral grooves 31 and 32 of the first connection pipe 3, the through spiral grooves 41 and 42 of the second connection pipe 4, and the flywheel 5. The motion conversion mechanism 6 formed by the columnar member 51 is converted into the rotational motion of the flywheel 5. The rotational inertia force accompanying the rotation of the flywheel 5 attenuates the vibration of the first rod 1 and the second rod 2 of each tie rod 12 and the vibration of the beam body 17 and the bundle material 18. Since this tying beam 16 uses the tie rod 12 to which the small vibration damping turnbuckle 10 of the present embodiment is applied as a lower chord material, vibration can be effectively suppressed while suppressing the influence on the aesthetic appearance. Further, since the tie rod as the lower chord member of the tension string beam 16 uses the light-weight damping turnbuckle 10 of the present embodiment, the bending of the first rod 1 and the second rod 2 can be reduced, and the damping turnbuckle can be reduced. The vibration of 10 itself can be prevented.
  In the above embodiment, the vibration-damping turnbuckle 10 is used to connect the rods 1 and 2 as tension materials, but the vibration-damping turnbuckle of the present invention connects wires, piano wires, and the like as tension materials. May be used for
  FIG. 9 is a front view showing a vibration damping turnbuckle as a second embodiment of the vibration damping device for tension material of the present invention, and FIG. 10 is a longitudinal sectional view of the vibration damping turnbuckle of the second embodiment. FIG. 11 is an exploded view of the vibration damping turnbuckle of the second embodiment. The vibration-damping turnbuckle 110 is connected to the first rod 1 and the second rod 2 as tension members constituting the tie rod, introduces a predetermined tension to the first rod 1 and the second rod 2, and is generated in the tie rod. The vibration and the vibration of the member on which the tie rod is bridged are suppressed.
  The vibration control turnbuckle 110 has a first connecting pipe 103 as a first connecting portion whose proximal end is connected to the first rod 1, a proximal end connected to the second rod 2, and a distal end portion of the first turn tube 100. A second connection tube 104 as a second connection portion formed so as to be fitted to a tip portion of the connection tube 103, and a first tubular rubber as a holding portion for connecting the first connection tube 103 and the second connection tube 104 107 and the second tubular rubber 108, and a flywheel 105 as a rotating body arranged so as to surround the distal end portion of the first connecting tube 103 and the distal end portion of the second connecting tube 104. 9 and 10 show a state in which the first connecting pipe 103 and the second connecting pipe 104 are in the center of the relative displacement range.
  The first connection pipe 103 is formed of a substantially cylindrical tubular body, and as shown in the exploded view of FIG. 11, a base end portion 103a connected to the first rod 1 and a male end adjacent to the base end portion 103a. It has the spiral part 103b in which the screw 131 was formed, and the fitting part 103c which fits in the 2nd connecting pipe 104 adjacent to the spiral part 103b. A through hole concentric with the central axis is formed inside the first connecting pipe 103, and this through hole is formed with a small diameter through hole 133 formed over the base end portion 103a and the base end side portion of the spiral portion 103b. The large-diameter through hole 134 is located from the tip side portion of the spiral portion 103b to the tip of the fitting portion 103c. The small diameter through hole 133 is provided with a female screw into which a male screw provided at the distal end portion 1 a of the first rod 1 is screwed. The fitting portion 103 c is provided with a guide groove 132 that extends in the axial direction and guides the engaging tool 109.
  The second connecting pipe 104 is formed of a substantially cylindrical tubular body, and as shown in the exploded view of FIG. 11, the base end portion 104a connected to the second rod 2 and a male end adjacent to the base end portion 104a. A spiral portion 104b in which a screw 141 is formed, and a fitting portion 104c that is externally fitted to the first connection pipe 103 are adjacent to the spiral portion 104b. A through hole concentric with the central axis is formed inside the second connecting pipe 104, and this through hole is formed with a small diameter through hole 143 formed over the base end portion 104a and the base end side portion of the spiral portion 104b. The medium-diameter through-hole 144 formed in the central portion of the spiral portion 103b and the large-diameter through-hole 145 located from the tip side portion of the spiral portion 104b to the tip of the fitting portion 104c. A fitting portion 103c of the first connection tube 103 is formed in the large diameter through hole 145 of the second connection tube 104 so as to be slidable in the axial direction. The small diameter through hole 143 is provided with a female screw into which a male screw provided at the distal end portion 2 a of the second rod 2 is screwed. The fitting portion 104 c is provided with a guide groove 142 that extends in the axial direction and guides the engagement tool 109.
  The engaging tool 109 is formed of a columnar member that is inserted into the guide groove 132 of the first connection pipe 103 and the guide groove 142 of the second connection pipe 104 and extends in the radial direction. The engagement tool 109 is guided in the axial direction while being engaged with the guide groove 132 of the first connection pipe 103 and the guide groove 142 of the second connection pipe 104, and the first connection pipe 103 and the second connection pipe 104 are engaged. And the relative rotation around the central axis between the first connecting pipe 103 and the second connecting pipe 104 is prevented. The relative rotation between the first connecting pipe 103 and the second connecting pipe 104 is prevented by forming a groove extending in the axial direction in one of the first connecting pipe 103 and the second connecting pipe 104 and projecting in the other. It may be performed by forming a portion and guiding the convex portion along the groove.
  The male screw 131 of the first connecting pipe 103 and the male screw 141 of the second connecting pipe 104 are formed in opposite directions. The female screw of the small diameter through hole 133 of the first connection tube 103 and the female screw of the small diameter through hole 143 of the second connection tube 104 are formed in opposite directions.
  The first tubular rubber 107 is composed of a rubber cylindrical body having substantially the same outer diameter and thickness as the fitting portion 103 c of the first connecting pipe 103. The first tubular rubber 107 is disposed in the large-diameter through hole 145 of the second connection pipe 104, and one end is fixed to the tip of the fitting portion 103c of the first connection pipe 103, while the other end is the second connection. The tube 104 is fixed to a step portion between the large diameter through hole 145 and the medium diameter through hole 144. The second tubular rubber 108 is formed of a rubber tubular body having substantially the same outer diameter and thickness as the distal end portion of the second connecting pipe 104. The second tubular rubber 108 is disposed on the outer peripheral side of the fitting portion 103 c of the first connection pipe 103, one end is fixed to the tip of the second connection pipe 104, and the other end is the first female of the flywheel 105. It abuts on the end of the screw 151 so as to be able to contact and separate.
  When the first tubular rubber 107 introduces a predetermined tension to the first rod 1 and the second rod 2 by the vibration control turnbuckle 110, the first connecting pipe 103 and the second connecting pipe 104 are connected to the first tubular rubber 107. The spring constant is set so that the first connecting pipe 103 and the second connecting pipe 104 are positioned at the center of the relative displacement range assumed in advance. Further, the first tubular rubber 107 has a linear spring constant and a tension of the first rod 1 and the second rod 2 in the presumed relative displacement range of the first connecting tube 103 and the second connecting tube 104. The spring constant is set so that the fluctuation range is within a positive region. Here, the relative displacement range assumed in advance of the first connecting pipe 3 and the second connecting pipe 4 means that a member connected by a tie rod to which the damping turnbuckle 110 is applied is assumed to be an earthquake, wind, This is a relative displacement range generated in the first connecting pipe 3 and the second connecting pipe 4 when vibrated under a live load. On the other hand, the other end of the first tubular rubber 108 is only brought into contact with the end of the first female screw 151 of the flywheel 105, and a predetermined tension is introduced into the first rod 1 and the second rod 2. When this occurs, the holding force for the first connecting pipe 103 and the second connecting pipe 104 is not exhibited. When the relative displacement becomes shorter than the stationary position in the fluctuation process of the relative displacement of the first connection pipe 103 and the second connection pipe 104, the first tubular rubber 108 is compressed, and the first connection pipe 103 and the second connection pipe 104 are compressed. The elastic force of the first tubular rubber 108 is applied. The first annular rubber 107 and the second tubular rubber 108 may be composed of, for example, a ring spring other than rubber, and when a predetermined tension to be introduced into the first rod 1 and the second rod 2 is introduced. As long as the first connecting pipe 103 and the second connecting pipe 104 can be held at the center of the relative displacement range, the material, shape, and arrangement number are not particularly limited. Further, when using a holding portion having a non-linear spring constant, the first connecting pipe 103 and the second connecting pipe 104 are not necessarily held at the center of the relative displacement range. In short, the holding portion is configured so that the first rod 1 and the second rod 2 have a tension variation range within a positive region when vibrated in response to a presumed earthquake, wind, or live load. What is necessary is just to hold | maintain the connecting pipe 103 and the 2nd connecting pipe 104 so that a relative linear motion is possible in an approach direction and a separation direction.
  The flywheel 105 is formed by a sleeve-like cylindrical member disposed so as to surround the fitting portion 103 c of the first connecting pipe 103 and the fitting portion 104 c of the second connecting pipe 104. On the inner surface of the flywheel 105, a first female screw 151 that is screwed into the male screw 131 of the first connection tube 103 is formed at an end portion on the side where the first connection tube 103 is inserted. Further, on the inner surface of the flywheel 105, a second female screw 152 that is screwed into the male screw 141 of the second connection tube 104 is formed at the end on the side where the second connection tube 104 is inserted. . The first female screw 151 and the second female screw 152 are spirally wound in opposite directions. A flange on which the end surface of the second tubular rubber 108 is locked is provided at the back end of the first female screw 151 of the flywheel 105.
  The flywheel 105 includes a male screw 131 of the first connecting pipe 103 and a male screw of the second connecting pipe 104 on the outside of the first connecting pipe 103 and the second connecting pipe 104 in which the fitting portions 103 c and 104 c are fitted to each other. 141, the first female screw 151 and the second female screw 152 are attached to each other in a screwed state. The first connecting tube 103 and the second connecting screw 103 are connected to each other by the male screw 131 of the first connecting tube 103, the male screw 141 of the second connecting tube 104, the first female screw 151 and the second female screw 152 of the flywheel 105. A motion conversion mechanism 106 that converts the relative linear motion of the tube 104 into the rotational motion of the flywheel 105 is configured.
  Using the vibration damping turnbuckle 110 configured as described above, a tie rod is configured as follows. First, a clevis provided at one end of the first rod 1 is connected to one member that bridges the tie rod. Further, a clevis provided at one end of the second rod 2 is connected to the other member that bridges the tie rod. Next, the male screw of the small diameter through-hole 133 of the first connection pipe 103 of the vibration control turnbuckle 110 is screwed into the male screw of the tip end portion 1 a at the other end of the first rod 1, and other than the second rod 2. The female screw of the small-diameter through hole 143 of the second connection pipe 104 of the damping turnbuckle 110 is screwed into the male screw of the tip portion 2a at the end. The male screw of the first rod 1 and the male screw of the second rod 2 are a female screw of the small-diameter through hole 133 of the first connecting tube 103 and a small-diameter through hole of the second connecting tube 104 formed in opposite directions. Corresponding to the female screw 143, they are formed in opposite directions. After the first connecting pipe 103 is screwed to the first rod 1 and the second connecting pipe 104 is screwed to the second rod 2, the entire vibration damping turnbuckle 110 is rotated about its axis. As a result, the first rod 1 and the second rod 2 are pulled toward each other to introduce tension to the first rod 1 and the second rod 2. In an initial state where no tension is introduced, the vibration damping turnbuckle 110 is in a position where the first tubular rubber 107 is contracted, and the first connecting pipe 103 and the second connecting pipe 104 approach each other to form the smallest relative linear displacement. is there. When the damping turnbuckle 110 is rotated to introduce tension to the first rod 1 and the second rod 2, as the tension increases, the first tubular rubber 107 expands and the first connecting pipe 103 and the second rod The connecting pipe 104 moves away, and the relative linear displacement between the first connecting pipe 103 and the second connecting pipe 104 increases. When the tension introduced into the first rod 1 and the second rod 2 reaches a predetermined tension for connecting the members and the rotation of the damping turnbuckle 110 is stopped, the first connection pipe 103 and the second connection pipe 104 is held at a substantially central position in the relative displacement range. At this time, the half in the axial direction of the male screw 131 of the first connecting pipe 103 is screwed with the first female screw 151 of the flywheel 105, and the half in the axial direction of the male screw 141 of the second connecting pipe 104 is the flywheel. It is preferable that the second female screw 152 of 105 is screwed. Thus, the vibration control turnbuckle 110 connects the first rod 1 and the second rod 2, introduces a predetermined tension to the first rod 1 and the second rod 2, and connects the members with the tie rods. .
  The vibration-damping turnbuckle 110 of this embodiment suppresses the vibration of the tie rod and the vibration of the member on which the tie rod is bridged as follows. First, when a seismic load, a wind load, or a live load acts to cause a relative displacement between a plurality of members, a relative displacement occurs between the first rod 1 and the second rod 2 connected to these members, In response to this, the first connecting pipe 103 and the second connecting pipe 104 perform relative linear motion in the axial direction. When the first connecting pipe 103 and the second connecting pipe 104 perform relative linear motion, the male screw 131 of the first connecting pipe 103 and the male screw 141 of the second connecting pipe 104 are formed in opposite directions. Accordingly, the flywheel 105 in which the first female screw 151 and the second female screw 152 are engaged with the male screws 131 and 141 rotates around the concentric axes of the first connecting tube 2 and the second connecting tube 4. Here, when the first connecting pipe 103 and the second connecting pipe 104 are alternately displaced in the approaching direction and the separating direction, the flywheel 105 is alternately rotated in one direction around the central axis and in the other direction. Due to the mass effect of the rotational inertia of the flywheel 105, the vibration energy due to the relative displacement of the first rod 1 and the second rod 2 and the vibration energy due to the relative displacement of the members are attenuated. As a result, vibrations of the first rod 1 and the second rod 2 and the members are reduced. Further, when the first connecting pipe 103 and the second connecting pipe 104 are alternately displaced in the approaching direction and the separating direction, the first annular rubber 107 repeatedly contracts and expands, and the second tubular rubber 108 repeatedly expands and contracts. Due to the damping action accompanying the expansion and contraction of the first annular rubber 107 and the second tubular rubber 108, vibrations of the first rod 1 and the second rod 2 and the members are reduced. Further, the first annular rubber 107 and the second tubular rubber 108 absorb an impact caused by vibration.
  According to the vibration damping turnbuckle 110 of the present embodiment, when a predetermined tension is introduced into the first rod 1 and the second rod 2, the first connecting pipe 103 and the second connecting pipe 104 are connected by the first tubular rubber 107. It can be held so that relative linear motion is possible in the approach direction and the separation direction. Thereby, even if the 1st connecting pipe 103 and the 2nd connecting pipe 104 carry out a relative linear motion in the approach direction, it can prevent that the tensile force of the 1st rod 1 and the 2nd rod 2 becomes zero. Therefore, the relative linear motion of the first connecting tube 103 and the second connecting tube 104 can be effectively converted into the rotational motion of the flywheel 105, and the first rod 1 and the second rod 2 are caused by the mass effect of the rotational inertia of the flywheel 105. The vibration of the rod 2 and the member can be effectively reduced. In addition, since the chance that the tensile force of the first rod 1 and the second rod 2 becomes zero can be reduced, the first rod 1 and the second rod 2 temporarily become zero, and the posture of the damping turnbuckle 110 changes. In addition, it is possible to prevent inconvenience that the vibration damping turnbuckle 110 itself vibrates.
  Further, the vibration-damping turnbuckle 110 of the present embodiment is disposed at a position where the flywheel 105 surrounds the fitting portion 103c of the first connecting pipe 103 and the fitting portion 104c of the second connecting pipe 104 that overlap each other. . Thereby, the whole dimension combining the first connecting pipe 103, the second connecting pipe 104, and the flywheel 105 can be made relatively small. Therefore, the vibration-damping turnbuckle 110 is difficult to be limited by the installation position due to the positional relationship with other members, and can be applied to the structure with a relatively high degree of freedom. Further, since the vibration damping turnbuckle 110 can be made relatively small, it is possible to prevent inconvenience that impairs the aesthetic appearance of the structure.
  In addition, the vibration-damping turnbuckle 110 of the present embodiment can be configured with parts having relatively low strength because only the tensile force is substantially transmitted from the first rod 1 and the second rod 2 and no compression force is received. Therefore, since this vibration-damping turnbuckle 110 can reduce the mass, it is possible to prevent inconveniences that cause excessive bending of the first rod 1 and the second rod 2 to be connected.
  Further, the vibration-damping turnbuckle 110 of the present embodiment is formed by the flywheel 105 so as to surround the fitting portion 103c of the first connection pipe 103 and the fitting portion 104c of the second connection pipe 104 that overlap each other. A casing that covers the distal end portion of the first connecting pipe 103 and the distal end portion of the second connecting pipe 104 is not necessary. Therefore, it is possible to effectively reduce the number of parts and reduce the weight.
  In the vibration damping turnbuckle 110 of the second embodiment, the male screw 131 of the first connecting tube 103 and the male screw 141 of the second connecting tube 104, and the first female screw 151 and the second female screw 152 of the flywheel 105 A plurality of balls may be arranged between them to form a ball screw.
  The vibration damping turnbuckle 110 of the second embodiment can be applied to the wall body of FIG. 6, the ridge 14 of FIG. 7, and the stringed beam 16 of FIG. 8 instead of the vibration damping turnbuckle 10 of the first embodiment. .
  FIG. 12 is a front view showing a vibration damping turnbuckle as a third embodiment of the tension material damping device of the present invention, and FIG. 13 is a longitudinal sectional view of the vibration damping turnbuckle of the third embodiment. 14 is a longitudinal sectional view taken along the line DD of FIG. The vibration control turnbuckle 210 is connected to the first rod 1 and the second rod 2 as tension members constituting the tie rod, introduces a predetermined tension to the first rod 1 and the second rod 2, and is generated in the tie rod. The vibration and the vibration of the member on which the tie rod is bridged are suppressed.
  The vibration control turnbuckle 210 includes a first connector 203 as a first connection portion connected to the first rod 1, a second connector 204 as a second connection portion connected to the second rod 2, A casing 211 that accommodates the overlapping portion of the first connector 203 and the second connector 204, a first rubber plate 207 and a second plate as a holding portion that connects the first connector 203 and the second connector 204. And a flywheel 205 as a rotating body having a disk-like member 251 disposed on both sides of the casing 211. In addition, in FIG. 12 thru | or 14, the mode that the 1st connection tool 203 and the 2nd connection tool 204 exist in the center position of the relative displacement range is shown.
  The first connector 203 includes a base end portion 203a having a through hole 232 that is screwed into the tip end portion 1a of the first rod 1, and a tip end portion 203b in which a rack 231 is formed continuously to the tip end of the base end portion 203a. Have. The second connector 204 includes a base end portion 204a having a through hole 242 screwed into the tip end portion 2a of the second rod 2, and a tip end portion 204b formed with a rack 241 connected to the tip end of the base end portion 204a. Have. The first connector 203 and the second connector 204 are formed in a substantially square shape when viewed in the axial direction. In the through hole 232 of the first connector 203, a female screw that is screwed into the male screw of the tip 1 a of the first rod 1 is formed. In the through hole 242 of the second connector 204, a female screw that is screwed into the male screw of the distal end portion 2 a of the second rod 2 is formed. The female screw of the through hole 232 of the first connector 203 and the female screw of the through hole 242 of the second connector 204 are formed in opposite directions. The tip portions 203b and 204b of the first connector 203 and the second connector 204 are formed so as to be biased to one side in the height direction, and racks 231 and 241 are formed on the surface where the other side is desired. The first connector 203 and the second connector 204 are arranged so that the surfaces on which the racks 231 and 241 of the tip portions 203b and 204b are formed face each other.
  The casing 211 is formed of a rectangular tube having a substantially square shape when viewed in the axial direction, and accommodates the distal ends 203b and 204b of the first connector 203 and the second connector 204, and the distal ends of the proximal ends 203a and 204a. doing. A base end portion 203a of the first connector 203 and a base end portion 204a of the second connector 204 protrude from the openings on both sides in the axial direction of the casing 211 so as to be able to advance and retract in the axial direction.
  In the casing 211, the first connection is located on the other end in the height direction of the end surface of the distal end portion 203b of the first connection tool 203 and the distal end surface of the base end portion 204a of the second connection tool 204. A first rubber plate 207 is connected to a portion located on the extension of the tip 203b of the tool 203. Moreover, it is the end surface of the front-end | tip part 204b of the 2nd connection tool 204, and the front end surface of the base end part 203a of the 1st connection tool 203, Comprising: The front-end | tip of the 2nd connection tool 204 located in the other side of a height direction A second rubber plate 208 is connected to a portion located on the extension of the portion 204b. The first rubber plate 207 is a rubber plate having substantially the same width and thickness as the distal end portion 203b of the first connector 203. The second plate-like rubber 208 is formed of a rubber plate-like body having substantially the same width and thickness as the distal end portion 204b of the second connector 204.
  The first plate-like rubber 207 and the second plate-like rubber 208 are connected to the first connector 203 and the second plate when a predetermined tension is introduced to the first rod 1 and the second rod 2 by the vibration control turnbuckle 210. The spring constant is set so that the connection tool 204 is positioned at the center of the relative displacement range assumed in advance for the first connection tool 203 and the second connection tool 204. Furthermore, the first plate-like rubber 207 and the second plate-like rubber 208 have a linear spring constant and a first rod within a presumed relative displacement range of the first connector 203 and the second connector 204. The spring constant is set so that the fluctuation range of the tension of the first and second rods 2 falls within a positive region. Here, the relative displacement range assumed in advance of the first connector 203 and the second connector 204 means that a member connected by a tie rod to which the damping turnbuckle 210 is applied is assumed to be an earthquake, wind, This is a relative displacement range generated in the first connector 203 and the second connector 204 when vibrated under a live load. Note that the first plate-like rubber 207 and the second plate-like rubber 208 as the holding portion may be composed of, for example, plate-like springs other than rubber, and should be introduced into the first rod 1 and the second rod 2. If the first connector 203 and the second connector 204 can be held at the center of the relative displacement range when a predetermined tension is introduced, the material, shape, and arrangement number are not particularly limited. In addition, when using a holding unit having a non-linear spring constant, the first connector 203 and the second connector 204 are not necessarily held at the center of the relative displacement range. In short, the holding portion is configured so that the first rod 1 and the second rod 2 have a tension variation range within a positive region when vibrated in response to a presumed earthquake, wind, or live load. What is necessary is just to hold | maintain the connection tool 203 and the 2nd connection tool 204 so that a relative linear motion is possible in an approach direction and a separation direction.
  The flywheel 205 has two disk-like members 251 and 251 arranged on both sides of the casing 211, and the two disk-like members 251 and 251 are fixed to both ends through the casing 211 in the transverse direction. And a pinion 523 that is fitted and fixed to the center of the rotary shaft 252 and disposed in the casing 211. In FIG. 14, the flywheel 205 in plan view is shown instead of the flywheel 205 in sectional view. The pinion 523 is disposed between the distal end portion 203b of the first connector 203 and the distal end portion 204b of the second connector 204, and the first pin 203 is located on both sides of the rotary shaft 252 in the height direction. The rack 231 and the rack 241 of the second connector 204 are engaged with each other. The relative linear motion of the first connector 203 and the second connector 204 is the rotational motion of the flywheel 205 by the rack 231 of the first connector 203, the rack 241 of the second connector 204, and the pinion 523. A motion conversion mechanism 206 for converting into a motion is configured.
  Using the vibration damping turnbuckle 210 having the above configuration, a tie rod is configured as follows. First, a clevis provided at one end of the first rod 1 is connected to one member that bridges the tie rod. Further, a clevis provided at one end of the second rod 2 is connected to the other member that bridges the tie rod. Next, the female screw of the through hole 232 of the first connection tool 203 of the vibration control turnbuckle 210 is screwed into the male screw of the tip 1a at the other end of the first rod 1, and the other end of the second rod 2 is engaged. The female screw of the through hole 242 of the second connector 204 of the vibration control turnbuckle 210 is screwed into the male screw of the tip 2a. The male screw of the first rod 1 and the male screw of the second rod 2 are formed by the female screw of the through hole 232 of the first connector 203 and the through hole 242 of the second connector 204 formed in opposite directions. Corresponding to the female screw, they are formed in opposite directions. After the first connector 203 is screwed to the first rod 1 and the second connector 204 is screwed to the second rod 2, the entire vibration damping turnbuckle 210 is rotated about the axis. As a result, the first rod 1 and the second rod 2 are pulled toward each other to introduce tension to the first rod 1 and the second rod 2. In an initial state where no tension is introduced, the vibration control turnbuckle 210 is contracted by the first rubber plate 207 and the second rubber plate 208, and the first connector 203 and the second connector 204 come close to each other. It is in a position that makes a small relative linear displacement. When tension is applied to the first rod 1 and the second rod 2 by rotating the vibration control turnbuckle 210, the first plate rubber 207 and the second plate rubber 208 are extended as the tension increases. The first connecting tool 203 and the second connecting tool 204 move away from each other, and the relative linear displacement between the first connecting tool 203 and the second connecting tool 204 increases. When the tension introduced into the first rod 1 and the second rod 2 reaches a predetermined tension for connecting the members and the rotation of the damping turnbuckle 210 is stopped, the first connector 203 and the second connector Reference numeral 204 is capable of relative linear movement in the approaching direction and the separation direction, and is held substantially at the center of the relative displacement range. At this time, it is preferable that the pinion 523 of the flywheel 205 is positioned at the approximate center in the axial direction of the rack 231 of the first connector 203 and the approximately center in the axial direction of the rack 241 of the second connector 204. . In this way, the damping rod buckle 210 connects the first rod 1 and the second rod 2, introduces a predetermined tension to the first rod 1 and the second rod 2, and connects the members with the tie rods.
  The vibration-damping turnbuckle 210 of the present embodiment suppresses the vibration of the tie rod and the vibration of the member on which the tie rod is bridged as follows. First, when a seismic load, a wind load, or a live load acts to cause a relative displacement between a plurality of members, a relative displacement occurs between the first rod 1 and the second rod 2 connected to these members, In response to this, the first connector 203 and the second connector 204 perform relative linear motion in the axial direction. When the first connector 203 and the second connector 204 perform relative linear motion, the rack 231 at the distal end portion 203b of the first connector 203 and the rack 241 at the distal end portion 204b of the second connector 204 are relatively straight in the axial direction. Do exercise. As a result, the pinion 253 that meshes with the two racks 231, 241 is rotationally driven in a direction corresponding to the direction of the relative linear motion of the racks 231, 241, and the two disk-shaped members 251, 251 is rotationally driven. Here, when the first connector 203 and the second connector 204 are alternately displaced in the approach direction and the separation direction, the disc-shaped member 251 of the flywheel 205 is moved in one direction around the central axis and in the other direction. Rotate alternately. Due to the mass effect of the rotational inertia of the flywheel 205, the vibration energy due to the relative displacement of the first rod 1 and the second rod 2 and the vibration energy due to the relative displacement of the members are attenuated. As a result, vibrations of the first rod 1 and the second rod 2 and the members are reduced. Further, when the first connector 203 and the second connector 204 are alternately displaced in the approaching direction and the separation direction, the first plate-like rubber 207 and the second plate-like rubber 208 repeat contraction and extension. Due to the damping action accompanying the expansion and contraction of the first plate-like rubber 207 and the second plate-like rubber 208, vibrations of the first rod 1, the second rod 2 and the members are reduced. Further, the first plate-like rubber 207 and the second plate-like rubber 208 absorb an impact caused by vibration.
  According to the vibration damping turnbuckle 210 of the present embodiment, when a predetermined tension is introduced into the first rod 1 and the second rod 2, the first connector rubber 207 and the second plate rubber 208 cause the first connecting tool. 203 and the 2nd connection tool 204 can be hold | maintained so that a relative linear motion is possible in an approach direction and a separation direction. Thereby, even if the 1st connection tool 203 and the 2nd connection tool 204 carry out relative linear motion in the approach direction, it can prevent that the tensile force of the 1st rod 1 and the 2nd rod 2 becomes zero. Therefore, the relative linear motion of the first connector 203 and the second connector 204 can be effectively converted into the rotational motion of the flywheel 205, and the first rod 1 and the second rod 2 are caused by the mass effect of the rotational inertia of the flywheel 205. The vibration of the rod 2 and the member can be effectively reduced. Moreover, since the chance that the tensile force of the first rod 1 and the second rod 2 becomes zero can be reduced, the first rod 1 and the second rod 2 temporarily become zero, and the posture of the damping turnbuckle 210 changes. In addition, the inconvenience that the vibration control turnbuckle 210 itself vibrates can be prevented.
  Further, in the vibration damping turnbuckle 210 according to the present embodiment, the distal end portion 203b of the first connector 203 and the distal end portion 203b of the second connector 204 in which the disk-like members 251 of the flywheel 205 overlap each other in the height direction. It is arranged on the side of. As a result, the overall dimensions of the first connector 203, the second connector 204, and the flywheel 205 can be made relatively small. Therefore, the vibration-damping turnbuckle 210 is difficult to be restricted by the installation position due to the positional relationship with other members, and can be applied to the structure with a relatively high degree of freedom. Further, since the vibration damping turnbuckle 210 can be made relatively small, it is possible to prevent inconvenience that impairs the aesthetic appearance of the structure.
  In addition, the vibration damping turnbuckle 210 can be configured with a relatively low strength component because substantially only the tensile force is transmitted from the first rod 1 and the second rod 2 and no compression force is received. Therefore, since this vibration-damping turnbuckle 210 can reduce the mass, it is possible to prevent inconveniences that cause excessive bending of the connected first rod 1 and second rod 2.
  The vibration damping turnbuckle 210 of the third embodiment can be applied to the wall body of FIG. 6, the ridge 14 of FIG. 7, and the stringed beam 16 of FIG. 8 instead of the vibration damping turnbuckle 10 of the first embodiment. .
  In each of the above embodiments, the case where the tension material damping device of the present invention is applied to a turnbuckle has been described. However, the tension material damping device of the present invention does not necessarily require the function of the turnbuckle. That is, the tension material damping device of the present invention may not have the function of adjusting the tension of the tension material as long as it is connected to the tension material so that a predetermined tensile force is introduced. The tension material damping device of the present invention can be applied to various devices connected to a tension material for the purpose of suppressing vibrations of the tension material or vibrations of members connected to the tension material.
DESCRIPTION OF SYMBOLS 1 1st rod 2 2nd rod 3 1st connection pipe 4 2nd connection pipe 5 Flywheel 6 Motion conversion mechanism 7 1st tubular rubber 8 2nd tubular rubber 10 Damping turnbuckle 11 Frame 12 Tie rod 13 Clevis 14 庇 15 Wall body 16 Stringed beam 17 Beam body 18 Bundle members 31, 32 Through spiral groove 33 of first connection pipe Small diameter through hole 41, 42 of first connection pipe Through spiral groove 43 of second connection pipe Small diameter through hole of second connection pipe 51 Flywheel columnar member 52 Flywheel fixing pin 53 Flywheel cylindrical member 103 First connecting pipe 104 Second connecting pipe 105 Flywheel 106 Motion conversion mechanism 107 First tubular rubber 108 Second tubular rubber 110 Damping turnbuckle 131 Male thread 133 of the first connection pipe Small diameter through hole 141 of the first connection pipe Male thread 143 of the second connection pipe Small diameter through hole of the second connection pipe 51 First female screw 152 of flywheel Second female screw 203 of flywheel 203 First connector 204 Second connector 205 Flywheel 206 Motion conversion mechanism 207 First plate rubber 208 Second plate rubber 210 Damping turnbuckle 211 Casing 231 Rack 232 of first connector 232 Through hole 241 of first connector 242 Rack 242 of second connector 251 Through hole 251 of second connector 251 Flywheel disc 252 Flywheel rotating shaft 253 Flywheel Pinion

Claims (6)

  1. A tension material control for suppressing vibration of the tension material and the member interposed between a tension material and a tension material spanned between a plurality of members or at a connecting portion between the tension material and the member. A vibration device,
    A first connection portion and a second connection portion, one of which is connected to the tension member and the other of which is connected to the tension member or the member and capable of relative linear movement in the axial direction;
    A rotating body arranged at a position overlapping the first connection portion and the second connection portion;
    A motion conversion mechanism for converting a relative linear motion of the first connection portion and the second connection portion into a circular motion of the rotating body;
    A holding portion that holds the first connection portion and the second connection portion in a state in which tension is introduced into the tension member so that relative linear motion is possible in the approach direction and the separation direction ;
    The tension member damping device according to claim 1, wherein the holding portion includes an elastic body coupled between the first connection portion and the second connection portion .
  2. The tension material damping device according to claim 1 ,
    The vibration damping device for a tension member, wherein the rotating body is formed in a sleeve shape surrounding a tip portion of the first connection portion and a tip portion of the second connection portion.
  3. The vibration damping device for tension material according to claim 2 ,
    The first connection portion and the second connection portion are formed such that relative linear motion is possible in a state where the other tip portion is fitted inside the tip portion.
    The motion conversion mechanism is fixed to the fitting portion of the first connection portion and the second connection portion, the through spiral groove formed in the opposite direction winding, and the diametrically extending inside the rotating body. A tension member damping device, comprising: a columnar member disposed through the through spiral groove of the first connection portion and the through spiral groove of the second connection portion.
  4. The vibration damping device for tension material according to claim 2 ,
    The motion conversion mechanism includes a male screw formed on an outer peripheral surface near the tip of the first connection portion and an outer peripheral surface near the tip of the second connection portion and spirally wound in opposite directions, and the rotating body A tension material damping device, comprising: a male screw of the first connection portion and a female screw respectively engaged with the male screw of the second connection portion and formed at both ends of the inner surface.
  5. The tension material damping device according to claim 1 ,
    The rotating body includes a disk-like member disposed on the side of the tip portion of the first connection portion and the tip portion of the second connection portion, and a rotation shaft coupled to the center of the disk-like member. ,
    The motion conversion mechanism includes a rack formed to face a tip portion of the first connection portion and a tip portion of the second connection portion, a rack of the first connection portion, and a rack of the second connection portion. And a pinion connected to the rotating shaft of the rotating body, and a tension material damping device.
  6. In the damping device for tension materials according to any one of claims 1 to 5 ,
    Installed to connect the two tension materials,
    Female screws are respectively formed on the proximal end portion of the first connecting portion and the proximal end portion of the second connecting portion,
    Male screws are formed at the ends of the two tension members,
    The first connecting portion and the second connecting portion are rotated about the axis in a state where the male screw at the tip of the two tension members is screwed into the female screw of the first connecting portion and the female screw of the second connecting portion, respectively. By adjusting the threading length of the first and second connection parts and the two tension members, the tension introduced into the two tension members is adjusted. Characteristic damping device for tension material.
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JP4843882B2 (en) * 2001-08-13 2011-12-21 株式会社大林組 Vibration control device using inertia force installed between building layers
JP2007009629A (en) * 2005-07-04 2007-01-18 Shoichi Suzuki Turnbuckle
JP5358322B2 (en) * 2009-07-01 2013-12-04 学校法人日本大学 Vibration control device and specification method of vibration control device
JP5292236B2 (en) * 2009-09-08 2013-09-18 不二ラテックス株式会社 Damping damper for damping and damping structure of building structure
JP5839282B2 (en) * 2011-12-28 2016-01-06 清水建設株式会社 Rotating inertia mass damper
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